re: Polaris FST turbo engine, in a Redline?
Ok, you've asked a ton of questions. The FST engine has the head on the opposite direction as the Redlines. It can be turned around but you need to brake the timing chain and you also need the cam from a Redline engine and the water manifold from the Redline. If you are not familiar with the Weber engine and if you don't have some of the needed Weber specific tools I don't advise doing this. You'll need a cam chain link and a head gasket also. The FST does have the correct pistons and exhaust valves so you'll save that part of the expense. The electronics on the FST sled are not compatible with the Redlines without extensive changes. The one map sensor is the only part that is compatible with the Redline wiring harness. You'll need a Walbro off road ECU for the latest turbo application available from Weberpower.com or Red Rock Power Sports. The fuel injectors from the FST are also used. The turbo assembly has to be mounted upside down and reindexed to clear the Redline trans. Support brackets have to be fabricated for the turbo. The waist gate mount will need to be modified to give full boost. The FST throttle bodies and manifolds will not fit the Revolt without extensive modifications. The sock Redline throttle bodies will work with map sensor position modified and fabricated air intake plenum. You'll need a blow off valve, manual boost controller, intercooler, air intake and filter to the turbo, fabricated exhaust and a hole lot of plumbing to hook it all together. Its not a bolt in from the FST sled to the Redline and your not going to save a ton of money.